[SCSI] scsi_transport_iscsi: Added support to show port_state and port_speed in sysfs

sysfs patch to view port_state:
    /sys/class/iscsi_host/host*/port_state

sysfs patch to view port_speed:
    /sys/class/iscsi_host/host*/port_speed

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index 2703e3bedbf5..e49b7c8dd217 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -416,9 +416,26 @@ enum iscsi_host_param {
         ISCSI_HOST_PARAM_INITIATOR_NAME,
         ISCSI_HOST_PARAM_NETDEV_NAME,
         ISCSI_HOST_PARAM_IPADDRESS,
+        ISCSI_HOST_PARAM_PORT_STATE,
+        ISCSI_HOST_PARAM_PORT_SPEED,
         ISCSI_HOST_PARAM_MAX,
 };
 
+/* iSCSI port Speed */
+enum iscsi_port_speed {
+        ISCSI_PORT_SPEED_UNKNOWN        = 0x1,
+        ISCSI_PORT_SPEED_10MBPS         = 0x2,
+        ISCSI_PORT_SPEED_100MBPS        = 0x4,
+        ISCSI_PORT_SPEED_1GBPS          = 0x8,
+        ISCSI_PORT_SPEED_10GBPS         = 0x10,
+};
+
+/* iSCSI port state */
+enum iscsi_port_state {
+        ISCSI_PORT_STATE_DOWN           = 0x1,
+        ISCSI_PORT_STATE_UP             = 0x2,
+};
+
 #define iscsi_ptr(_handle) ((void*)(unsigned long)_handle)
 #define iscsi_handle(_ptr) ((uint64_t)(unsigned long)_ptr)